Our company

(XP) Xtreme Performance is a trademark and a division of Smart Parts Automotive. Our business office is located in Minneapolis Minnesota with several distribution warehouses across the country allowing us a broad based shipping platform. We are a premium auto parts manufacturer and distributor serving North America and abroad. We are known for cutting edge innovations in the remanufacturing industry and our below book factory prices. We build transmissions, torque converters, engines transfer cases and more for foreign and domestic vehicles.

We offer competitive shipping rates for US based customers.

We are a QS900 certified parts manufacturer with an experienced sales and manufacturing staff. Our company is an accredited member of the BBB and a driving force at both SEMA and ATRA shows.


These guys are great. I bought an NV4500 transmission for my Ram 3500 now it shifts smoother than when I bought truck new years 8 ago.

Lance Anderson, Tulsa OK

My truck broke down while driving cross-country, I was debating whether to have a shop fix my 48RE transmission or to order one from Smart Parts. Needless to say I went with Smart Parts. I was very impressed with the price and the shop that put it in told me the build on the transmission was one of the best they have ever seen.

Richard Pirkl, Ventura CA

Xtreme Performance Warehouse